Excavator coupler



1. Excavator coupler

1.1 is a perspective view of the excavator coupler;

1.2 is a front view thereof;

1.3 is a rear view thereof;

1.4 is a top view thereof;

1.5 is a bottom view thereof;

1.6 is a left side view thereof; and,

1.7 is a right side view thereof. 

CLAIM The ornamental design for an excavator coupler, as shown and described. 